a] Write the trend of atomic size and metallic character along a group and a period in the Modern Periodic Table. b]"Elements in the periodic table show periodicity of properties." List any four such properties.

a] Write the trend of atomic size and metallic character along a group

1.	a] Write the trend of atomic size and metallic character along a group and a period in the Modern Periodic Table. b]"Elements in the periodic table show periodicity of properties." List any four such properties.
Answer» SOLUTION : a) In the MODERN PERIODIC Table both atomic size and metallic character increase down a group and decrease along a period from left to right. B) Four periodic properties are: (0) Atomic size (i) Metallic character (iii) CHEMICAL reactivity (iv) Electropositivity